Mac OS

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Sectors: Consumer, Corporate, Government, Healthcare, Higher Ed
Primary Issues: Compliance, Data Breach, ID Theft Prevention, Medical Identity Theft
Incidents: Lastest Data Breaches, Reports

About Mac OS

This article relates to both the original "Classic" Mac OS as well as Mac OS X, Apple's more recent operating system. See the Mac OS X article for information directly relating to this current Macintosh operating system.

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Mac OS is the trademarked name for a series of graphical user interface-based operating systems developed by Apple Inc. (formerly Apple Computer, Inc.) for their Macintosh line of computer systems. The Macintosh user experience is credited with popularizing the graphical user interface. The original form of what Apple would later name the "Mac OS" was the integral and unnamed system software first introduced in 1984 with the original Macintosh, usually referred to simply as the System software.

Apple deliberately downplayed the existence of the operating system in the early years of the Macintosh to help make the machine appear more user-friendly and to distance it from other operating systems such as MS-DOS, which were portrayed as arcane and technically challenging. Much of this early system software was held in ROM, with updates typically provided free of charge by Apple dealers on floppy disk. As increasing disk storage capacity and performance gradually eliminated the need for fixing much of an advanced GUI operating system in ROM, Apple explored cloning while positioning major operating system upgrades as separate revenue-generating products, first with System 7 and System 7.5, then with Mac OS 7.6 in 1997.

Earlier versions of the Mac OS were compatible only with Motorola 68000-based Macintoshes. As Apple introduced computers with PowerPC hardware, the OS was upgraded to support this architecture as well. Mac OS X, which has superseded the "Classic" Mac OS, is compatible with both PowerPC and Intel processors.

  1. Mentioned In 50 Articles

  2. Adobe Releases Security Update for Flash Player

    Explore Article us-cert.gov (Aug 11 2010) ID Theft Prevention

    ...formation as it becomes available. Apple has released Safari 5.0.1 and Safari 4.1.1 for Windows and Mac OS X to address multiple vulnerabilities in Safari and WebKit. These vulnerabilities may allow an atta... (Read Full Article)

    Comment on Article Mentions:   Mac OS   Microsoft Windows and Office   Adobe

  3. Apple Releases Safari 5.0.1 and Safari 4.1.1

    Explore Article us-cert.gov (Jul 28 2010) ID Theft Prevention

    ...www.us-cert.gov/current/index.atom Apple has released Safari 5.0.1 and Safari 4.1.1 for Windows and Mac OS X to address multiple vulnerabilities in Safari and WebKit. These vulnerabilities may allow an atta... (Read Full Article)

    Comment on Article Mentions:   Firefox   Apple   Oracle

  4. Adobe Releases Update for Adobe Reader and Adobe Acrobat

    Explore Article us-cert.gov (Jun 29 2010) ID Theft Prevention

    ...Firefox 3.6.4 June 17 Apple Releases iTunes 9.2 June 16 Apple Releases Security Update 2010-004 and Mac OS X v10.6.4 June 10 Adobe Releases Flash 10.1 June 10 Microsoft Windows Help and Support Center Vulne... (Read Full Article)

    Comment on Article Mentions:   iOS   Adobe   Mac

  5. Google Releases Chrome 5.0.375.86

    Explore Article us-cert.gov (Jun 25 2010) ID Theft Prevention

    ...rmine which updates should be applied. Apple has released Safari 5.0 and Safari 4.1 for Windows and Mac OS X to address multiple vulnerabilities in ColorSync, Safari, and WebKit. These vulnerabilities may a... (Read Full Article)

    Comment on Article Mentions:   Apple   iOS   Mac

  6. Apple Releases Security Update 2010-004 and Mac OS X v10.6.4

    Explore Article us-cert.gov (Jun 16 2010) ID Theft Prevention

    ...ilable at http://www.us-cert.gov/current/index.atom Apple has released Security Update 2010-004 and Mac OS X v10.6.4 to address multiple vulnerabilities that affect a number of applications. These vulnerabi... (Read Full Article)

    Comment on Article Mentions:   Adobe PSIRT   Mac OS   Mac

  7. Google Releases Chrome 5.0.375.70

    Explore Article us-cert.gov (Jun 9 2010) ID Theft Prevention

    ...pplied. added June 8, 2010 at 10:01 am Apple has released Safari 5.0 and Safari 4.1 for Windows and Mac OS X to address multiple vulnerabilities in ColorSync, Safari, and WebKit. These vulnerabilities may a... (Read Full Article)

    Comment on Article Mentions:   Mac OS   Apple   Adobe

  8. Apple Releases Safari 5.0 and Safari 4.1

    Explore Article us-cert.gov (Jun 8 2010) ID Theft Prevention

    ...p://www.us-cert.gov/current/index.atom Apple has released Safari 5.0 and Safari 4.1 for Windows and Mac OS X to address multiple vulnerabilities in ColorSync, Safari, and WebKit. These vulnerabilities may a... (Read Full Article)

    Comment on Article Mentions:   Mac OS   Apple   Adobe

  9. Cisco Network Building Manager Vulnerabilities

    Explore Article us-cert.gov (May 27 2010) ID Theft Prevention

    ...e 5.0.375.55 to help mitigate the risks. added May 19, 2010 at 08:56 am Apple has released Java for Mac OS X 10.5 Update 7 and Java for Mac OS X 10.6 Update 2 to address multiple vulnerabilities. These vulnerabilities may allow an attacker to... (Read Full Article)

    Comment on Article Mentions:   URL   Microsoft Windows   Foxit Reader

  10. New cyber attack, all browsers vulnerable: open tabs lead you to identity theft

    Explore Article Ecommerce Journal (May 27 2010) Consumer , ID Theft Prevention

    ... by secretly changing already-open browser tabs. It was said that all major browsers on Windows and Mac OS X are vulnerable to this kind of attack. This week a Firefox creative lead Aza Raskin reported a ne... (Read Full Article)

    Comment on Article Mentions:   Mac OS   Firefox

  11. Microsoft Releases Out-of-Band Security Bulletin Update

    Explore Article us-cert.gov (Mar 30 2010) ID Theft Prevention

    ...ide additional information as it becomes available. Apple has released Security Update 2010-002 and Mac OS X v10.6.3 to address multiple vulnerabilities that affect a number of applications. These vulnerabi... (Read Full Article)

    Comment on Article Mentions:   Security Bulletin Advance Notification   Security Update   Microsoft Security Advisory

  12. Microsoft Releases Advance Notification for Out-of-Band Security Bulletin

    Explore Article us-cert.gov (Mar 29 2010) ID Theft Prevention

    ...ide additional information as it becomes available. Apple has released Security Update 2010-002 and Mac OS X v10.6.3 to address multiple vulnerabilities that affect a number of applications. These vulnerabi... (Read Full Article)

    Comment on Article Mentions:   Security Bulletin Advance Notification   Security Update   Microsoft Windows and Office

  13. Apple Releases Security Update 2010-002 and Mac OS X v10.6.3

    Explore Article us-cert.gov (Mar 29 2010) ID Theft Prevention

    ...ilable at http://www.us-cert.gov/current/index.atom Apple has released Security Update 2010-002 and Mac OS X v10.6.3 to address multiple vulnerabilities that affect a number of applications. These vulnerabi... (Read Full Article)

    Comment on Article Mentions:   Security Update   Microsoft Windows and Office   Mac OS

  14. Adobe Releases Security Update for Flash Media Server

    Explore Article us-cert.gov (Dec 22 2009) ID Theft Prevention

    ...lease notes and apply any necessary updates to help mitigate the risks. Apple has released Java for Mac OS X 10.6 Update 1 and Java for Mac OS X 10.5 Update 6 to address these vulnerabilities. Mac users are encouraged to review Apple articles... (Read Full Article)

    Comment on Article Mentions:   Microsoft Windows and Office   Adobe AIR   Cisco

  15. Microsoft Releases Security Advisory 954157

    Explore Article us-cert.gov (Dec 11 2009) ID Theft Prevention

    ...lease notes and apply any necessary updates to help mitigate the risks. Apple has released Java for Mac OS X 10.6 Update 1 and Java for Mac OS X 10.5 Update 6 to address these vulnerabilities. Mac users are encouraged to review Apple articles... (Read Full Article)

    Comment on Article Mentions:   Microsoft Windows and Office   Microsoft Security Advisory   Adobe AIR

  16. HP Releases Update to Address OpenView Network Node Manager Vulnerabilities

    Explore Article us-cert.gov (Dec 11 2009) ID Theft Prevention

    ...lease notes and apply any necessary updates to help mitigate the risks. Apple has released Java for Mac OS X 10.6 Update 1 and Java for Mac OS X 10.5 Update 6 to address these vulnerabilities. Mac users are encouraged to review Apple articles... (Read Full Article)

    Comment on Article Mentions:   Microsoft Windows and Office   Microsoft Security Advisory   Adobe AIR

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